AWS SDK Version 3 for .NET
API Reference

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Container for the parameters to the GetBucketPolicy operation. Returns the policy of a specified bucket. If you are using an identity other than the root user of the Amazon Web Services account that owns the bucket, the calling identity must have the GetBucketPolicy permissions on the specified bucket and belong to the bucket owner's account in order to use this operation.

If you don't have GetBucketPolicy permissions, Amazon S3 returns a

403
            Access Denied
error. If you have the correct permissions, but you're not using an identity that belongs to the bucket owner's account, Amazon S3 returns a
405
            Method Not Allowed
error.

As a security precaution, the root user of the Amazon Web Services account that owns a bucket can always use this operation, even if the policy explicitly denies the root user the ability to perform this action.

For more information about bucket policies, see Using Bucket Policies and User Policies.

The following action is related to GetBucketPolicy:

Inheritance Hierarchy

System.Object
  Amazon.Runtime.AmazonWebServiceRequest
    Amazon.S3.Model.GetBucketPolicyRequest

Namespace: Amazon.S3.Model
Assembly: AWSSDK.S3.dll
Version: 3.x.y.z

Syntax

C#
public class GetBucketPolicyRequest : AmazonWebServiceRequest
         IAmazonWebServiceRequest

The GetBucketPolicyRequest type exposes the following members

Constructors

NameDescription
Public Method GetBucketPolicyRequest()

Properties

NameTypeDescription
Public Property BucketName System.String

The name of the bucket.

Public Property ExpectedBucketOwner System.String

The account ID of the expected bucket owner. If the bucket is owned by a different account, the request will fail with an HTTP 403 (Access Denied) error.

Examples

This example shows how to Get, Put and Delete bucket policies.

BucketPolicy samples


                // Create a client
                AmazonS3Client client = new AmazonS3Client();

                // Put sample bucket policy (overwrite an existing policy)
                string newPolicy = @"{ 
    ""Statement"":[{ 
    ""Sid"":""BasicPerms"", 
    ""Effect"":""Allow"", 
    ""Principal"": ""*"", 
    ""Action"":[""s3:PutObject"",""s3:GetObject""], 
    ""Resource"":[""arn:aws:s3:::samplebucketname/*""] 
}]}";
                PutBucketPolicyRequest putRequest = new PutBucketPolicyRequest
                {
                    BucketName = "SampleBucket",
                    Policy = newPolicy
                };
                client.PutBucketPolicy(putRequest);


                // Retrieve current policy
                GetBucketPolicyRequest getRequest = new GetBucketPolicyRequest
                {
                    BucketName = "SampleBucket"
                };
                string policy = client.GetBucketPolicy(getRequest).Policy;

                Console.WriteLine(policy);
                Debug.Assert(policy.Contains("BasicPerms"));


                // Delete current policy
                DeleteBucketPolicyRequest deleteRequest = new DeleteBucketPolicyRequest
                {
                    BucketName = "SampleBucket"
                };
                client.DeleteBucketPolicy(deleteRequest);


                // Retrieve current policy and verify that it is null
                policy = client.GetBucketPolicy(getRequest).Policy;
                Debug.Assert(policy == null);

                

Version Information

.NET Core App:
Supported in: 3.1

.NET Standard:
Supported in: 2.0

.NET Framework:
Supported in: 4.5, 4.0, 3.5